#define IRpin_PIN PIND #define IRpin 2 // the maximum pulse we'll listen for - 65 milliseconds is a long time #define MAXPULSE 65000 // what our timing resolution should be, larger is better // as its more 'precise' - but too large and you wont get // accurate timing #define RESOLUTION 20 // we will store up to 100 pulse pairs (this is -a lot-) uint16_t pulses[100][2]; // pair is high and low pulse uint8_t currentpulse = 0; // index for pulses we're storing void setup(void) { Serial.begin(9600); Serial.println("Ready to decode IR!"); } void loop(void) { uint16_t highpulse, lowpulse; // temporary storage timing highpulse = lowpulse = 0; // start out with no pulse length // while (digitalRead(IRpin)) { // this is too slow! while (IRpin_PIN & (1 << IRpin)) { // pin is still HIGH // count off another few microseconds highpulse++; delayMicroseconds(RESOLUTION); // If the pulse is too long, we 'timed out' - either nothing // was received or the code is finished, so print what // we've grabbed so far, and then reset if ((highpulse >= MAXPULSE) && (currentpulse != 0)) { printpulses(); currentpulse=0; return; } } // we didn't time out so lets stash the reading pulses[currentpulse][0] = highpulse; // same as above while (! (IRpin_PIN & _BV(IRpin))) { // pin is still LOW lowpulse++; delayMicroseconds(RESOLUTION); if ((lowpulse >= MAXPULSE) && (currentpulse != 0)) { printpulses(); currentpulse=0; return; } } pulses[currentpulse][1] = lowpulse; // we read one high-low pulse successfully, continue! currentpulse++; } void printpulses(void) { Serial.println("\n\r\n\rReceived: \n\rOFF \tON"); for (uint8_t i = 0; i < currentpulse; i++) { Serial.print("delayMicroseconds("); Serial.print(pulses[i][0] * RESOLUTION, DEC); Serial.print("); pulseIR("); Serial.print(pulses[i][1] * RESOLUTION, DEC); Serial.println(");"); } }